Description This camera lens tester features a color calibration drawing and lens focus chart designed for accurate camera focus chart adjustments on surveillance systems. Perfect for various monitoring scenarios, it doubles as a lens testing card and color accuracy tool, ensuring optimal color board chart clarity during installation and maintenance. Features - Color: Multi 1 -Material:Paper - Size: 40.00X31.90X0.10cm/15.72X12.54X0.04in -Enhanced image clarity: achieve fine camera focus adjustment using this lens test chart, ensuring every detail in your surveillance footage is captured with maximum sharpness -Efficient calibration process: the resolution focus chart simplifies quick and accurate monitor calibration tool workflows, reducing setup time and maximizing the efficiency of professional installations -Monitor calibration tool: designed as a camera image quality tester, this lens testing card fits a wide range of cctv systems, from traffic monitoring to home security, meeting diverse surveillance needs - Color: Multi 1 -User-friendly operation: with clear design as a camera focus testing tool, even nonprofessionals can achieve precise calibration, enhancing installation experience and reducing technical barriersPackage list: 1 x Monitor calibration card